Bismuth-doped power amplifier in the spectral region between 1650 nm and 1700 nm

Grzegorz Gomolka; Monika Krajewska; Aleksandr Khegai; Aleksey Lobanov; Vladimir Khopin; Sergei Firstov; Michal Nikodem

doi:10.1117/12.2555566

1 April 2020 Bismuth-doped power amplifier in the spectral region between 1650 nm and 1700 nm

Grzegorz Gomolka, Monika Krajewska, Aleksandr Khegai, Aleksey Lobanov, Vladimir Khopin, Sergei Firstov, Michal Nikodem

Proceedings Volume 11355, Micro-Structured and Specialty Optical Fibres VI; 113550Q (2020) https://doi.org/10.1117/12.2555566
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

A bismuth-doped fiber amplifier (BDFA) operating between 1650 nm and 1700 nm will be presented. This wavelength region is particularly interesting due to potential application is laser-based methane detection. However, typical output power from laser diodes operating in this spectral region is only between 5 and 15 mW which may limit sensitivity and/or detection range in some spectroscopic systems. Application of fiber amplifiers could help to overcome these limitations. BDFA presented in this paper provides output powers up to 80 mW at 1651 nm and 100 mW at 1687 nm. We analyze the noise at the output of the amplifier and demonstrate its application to photothermal spectroscopy of methane near 1651 nm.

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Grzegorz Gomolka, Monika Krajewska, Aleksandr Khegai, Aleksey Lobanov, Vladimir Khopin, Sergei Firstov, and Michal Nikodem "Bismuth-doped power amplifier in the spectral region between 1650 nm and 1700 nm", Proc. SPIE 11355, Micro-Structured and Specialty Optical Fibres VI, 113550Q (1 April 2020); https://doi.org/10.1117/12.2555566

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